Gary Georger on sat 29 oct 05
For an anagana/cofffin woodfire we've been using a
50/50 or so mix of EPK and alumina hydrate ..but am
interseted in not so white/bald wading marks so I'm
going to experiment with adding sawdust,coffee,rice,
oats sand,grog ....anyone have recipe or guidelines
for wading and proportions?
much appriecated
Gary
http://www.washingtonpotters.org
http://www.gallery-north.com/
http://planckpottery.com
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Tony Ferguson on sat 29 oct 05
Gary,
Are you desiring flashing on the underside of the work? I wash my shelves with 90/10 alumina hydrate and epk and do a 50/50 like you for wadding (I think). I have not noticed any difference whether I have used sawdust, etc. with flashing on the bottom--for me it has been the claybody that cauzing more or less flashing underneath--as well as placement in the kiln too. Please do tell how things turn out. Good luck and skill.
Tony Ferguson
Gary Georger wrote:
For an anagana/cofffin woodfire we've been using a
50/50 or so mix of EPK and alumina hydrate ..but am
interseted in not so white/bald wading marks so I'm
going to experiment with adding sawdust,coffee,rice,
oats sand,grog ....anyone have recipe or guidelines
for wading and proportions?
much appriecated
Gary
http://www.washingtonpotters.org
http://www.gallery-north.com/
http://planckpottery.com
__________________________________
Start your day with Yahoo! - Make it your home page!
http://www.yahoo.com/r/hs
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Paul Herman on sat 29 oct 05
Gary,
We use this:
by weight,
1 fireclay
1 kaolin
1 sand or grog
sawdust to taste
Best,
Paul Herman
Great Basin Pottery
Doyle, California US
http://greatbasinpottery.com
On Oct 29, 2005, at 9:36 AM, Gary Georger wrote:
> For an anagana/cofffin woodfire we've been using a
> 50/50 or so mix of EPK and alumina hydrate ..but am
> interseted in not so white/bald wading marks so I'm
> going to experiment with adding sawdust,coffee,rice,
> oats sand,grog ....anyone have recipe or guidelines
> for wading and proportions?
> much appriecated
> Gary
>
John Britt on sat 29 oct 05
Gary,
Here are some recipes:
BRESNAHAN WADDING
AP Green Fireclay 50.00
Alumina Hydrate 20.00
Sand 30.00
Oat Bran Wadding
EPK -7 scoops
Fire Clay -7 scoops
Oat bran -7 scoops
Alumina Wadding
Epk -7 scoops
Silica -7 scoops
Alumina Hydrate -7 scoops
Not sure about this last one:
Wood wadding
SAND - 1 part
FIRE CLAY -1 part
SAWDUST -1 part
LIZELLA(or Yellow Ochre) - to taste
Best of luck!
John Britt
ww.johnbrittpottery.com
Lee Love on sun 30 oct 05
Tony F,
I might be mistaken, but I think Gary is talking about the white
marks left on the clay by the wads.
I polish them off with a whetstone. Tony, I remember you
mentioning trouble with smoothing porcelain. This traditional
whetstone grinding method might be safer on the bottom of porcelain.
You move the stone on the footring in a circular motion, first the flat
bottom, then the outside edge and lastly, the inside edge.
Another way is to avoid white marks is to use sea shells. The
white ones with lines on the exterior of the shell are best, especially
in earthquake country. ( during an earthquake a couple earthquakes ago
during a firing, I had a pot slip off of the smooth shells, while
every pot on the grooved shells stayed in place.) The shells
dissolve of when the bottom of the pot is placed in a bucket of
water. Don't play with the mush the shells turn into, because it is
somewhat caustic.
--
Lee Love
in Mashiko, Japan http://mashiko.org
http://seisokuro.blogspot.com/ My Photo Logs
"Where the spirit does not work with the hand, there is no art."
--Leonardo da Vinci
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